User Manual

PINEAPPLE TECHNOLOGY, INC. TABLE OF CONTENTS
DTXPRO-1.2KU OPERATING AND SERVICE MANUAL
THE INFORMATION PROVIDED HEREIN IS PINEAPPLE TECHNOLOGY INCORPORATED PROPRIETARY INFORMATION AND
CANNOT BE COPIED OR DISTRIBUTED WITHOUT PRIOR AUTHORIZATION
TABLE OF CONTENTS
SECTION I --- SAFETY NOTICES…………………………………………………………………..…
I-1
SECTION II --- TRANSMITTER SPECIFICATIONS ……………...…………………………..……
II-1
SECTION III--- TRANSMITTER INSTALLATION …………………………………………………
III-1
SECTION IV --- TRANSMITTER TURN-ON PROCEDURE……………………….…......
IV-1
SECTION V --- THEORY OF OPERATION
A. INTRODUCTION………………………………………………………………………………..
V-2
B. ACDIS2 AC and DC Distribution…………………………………………………………….. V-2
C. PS6KW 6K Power Supply ………………………………………………………………….... V-3
D. ADP500/PAS Performance Monitor …………….………………………………..………... V-3
E. DXDPRO-10U Digital Modulator and Exciter……………………………………………… V-5
F. PA1KU-50 Final Amplifier….………..……………….………………………………………. V-5
G. Driver and ALC Circuits ……………………………………………………………………… V-5
H. USH3C-3 Three-Way Hybrid Splitter ……………………………………………….…….. V-6
I. UCH2KU-3 Multicoupler Combiner……………………….………………………………… V-6
J. DC5KC-1 Directional Coupler… V-6
K. BPUD2.5K ATSC-Compliant Mask Filter………………………………………………….. V-6
L. BLP5KU-KK Harmonic Filter……………………………………………………….………. V-7
SECTION Vl --- BLOCK DIAGRAMS AND PARTS LIST
A. DTXPRO-1.2KU BLOCK DIAGRAM…. ……………………………………………………..
VI-5
B. DTXPRO-1.2KU SUBASSEMBLIES………………………………………………………….……
VI-6
C. FILTER AND COUPLER LAYOUT…………………………………………………………… VI-7
C. MFA2PA……………………………………………………………………………………….… VI-12
D. PA1KU-50……………………………………………………………………………………….
E. 1A0035…………………………………………………………………………………………..
F. DC5KC-1 DIRECTIONAL COUPLER………………………………………...…………… VI-15
G. PARTS LIST VI-16
SECTION VII --- RECOMMENDED ROUTINE MAINTENANCE ………………………………..
VII-1
SECTION VIII ---ADJUSTMENTS AND TUNING …………………………………..……..……..
VIII-1
SECTION IX ---- PROBLEM SOLVING / TROUBLE SHOOTING...…….…….…….…………....
IX-1
SECTION X---- WARRANTY ………………………………………………………………………..
X-1